Window greenhouse



FIG. 1 is a perspective view taken looking at the front of the window greenhouse showing my new design.

FIG. 2 is a perspective view taken looking at the back of the window greenhouse and the inside showing the shelves.

FIG. 3 is a top view;

FIG. 4 is a bottom view; and

FIG. 5 is a side view taken from the right side of the window greenhouse of FIG. 1. 

The ornamental design for a window greenhouse, as shown. 